Identify the correct statement among the foll | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) $1$. For $NH_3$ and $NF_3$: The dipole moment of $NH_3$ $(1.46 \ D)$ is greater than $NF_3$ $(0.24 \ D)$ because in $NH_3$,the orbital dipole and

Vedclass · Accepted Answer

$CO < CO_2$ ($C-O$ bond length)

Vedclass · Answer

(B) $1$. For $NH_3$ and $NF_3$: The dipole moment of $NH_3$ $(1.46 \ D)$ is greater than $NF_3$ $(0.24 \ D)$ because in $NH_3$,the orbital dipole and bond dipoles reinforce each other,whereas in $NF_3$,they oppose each other. Thus,$A$ is incorrect.$2$. For $CO$ and $CO_2$: The bond order of $CO$ is $3$ $(C \equiv O)$,while in $CO_2$,the average bond order is $2$ $(O=C=O)$. Higher bond order implies shorter bond length. Thus,$CO $3$. For $NH_2^-$ and $NH_4^+$: $NH_2^-$ has $sp^3$ hybridization with $2$ lone pairs (bond angle $\approx 104.5^\circ$),while $NH_4^+$ has $sp^3$ hybridization with $0$ lone pairs (bond angle $109.5^\circ$). Thus,$NH_2^- $4$. For $I_3^-$ and $N_3^-$: $I_3^-$ has $3$ lone pairs on the central $I$ atom,while $N_3^-$ has $0$ lone pairs on the central $N$ atom. Thus,$I_3^- > N_3^-$. Option $D$ is incorrect.

Identify the correct statement among the following options:

Similar Questions

Sodium metal crystallizes in a body-centred cubic $(bcc)$ lattice with a unit cell edge of $4.29 \ \mathring{A}$. The radius of the sodium atom is approximately: .............. $\mathring{A}$

Chemical $A$ is used for the removal of temporary hardness of water. Compound $A$ reacts with $Na_2CO_3$ to produce caustic soda. When $CO_2$ gas is passed through $A$,it turns milky. What is the chemical formula of $A$?

The mass of the earth is $81$ times that of the moon and the radius of the earth is $3.5$ times that of the moon. The ratio of the escape velocity on the surface of the earth to that on the surface of the moon will be:

The melting point of $Zn$ is lower as compared to those of the other elements of the $3d$ series because:

If in a regular polygon,the number of diagonals is $54$,then the number of sides of the polygon is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module